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Corrosion resistance process of magnesium alloy in mechanical processing process and corrosion resistance tool thereof

A technology of mechanical processing and magnesium alloy, which is applied in the field of anti-corrosion technology, can solve the problems of high cutting fluid use cost, corrosion of magnesium alloy products, and no fundamental improvement, and achieve the effect of eliminating filiform corrosion

Inactive Publication Date: 2009-12-09
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve this kind of problem, the machining section has to change the cutting fluid frequently. On the one hand, this treatment method causes a high cost of cutting fluid usage. On the other hand, the problem of corrosion of the magnesium alloy product has not been fundamentally improved. It is necessary to invent an anti-corrosion process, which can fundamentally solve the anti-corrosion process of magnesium alloy machining, and can save the cost of cutting fluid

Method used

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  • Corrosion resistance process of magnesium alloy in mechanical processing process and corrosion resistance tool thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] as attached figure 1 As shown, first, the surface of the fixture 1 is pretreated to remove impurities, dirt and other attachments on the surface of the fixture 1; then, an electrically insulating amino baking varnish layer 2 is sprayed on the surface of the fixture 1. The thickness of the layer 2 is 10-15 microns. In this embodiment 1, the jig 1 is finally placed in an oven at 145° C. and baked for 40 minutes.

Embodiment 2

[0019] First, the surface of the fixture is pretreated to remove impurities, dirt and other attachments on the surface of the fixture; then, an electrically insulating electrophoretic paint layer is sprayed on the surface of the fixture, and the thickness of the electrophoretic paint layer is 10 to 15 Micron, in this embodiment 2, the magnesium alloy is placed in an oven at 160°C and baked for 30 minutes.

Embodiment 3

[0021] First, the surface of the fixture is pretreated to remove impurities, dirt and other attachments on the surface of the fixture; then micro-arc oxidation treatment is performed on the surface of the fixture to prepare a micro-arc with a thickness of 10-15 microns oxide layer.

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Abstract

The invention relates to a corrosion resistance process of magnesium alloy in mechanical processing process, which comprises a surface pretreatment step and an electric insulating layer preparation step. The process cuts off a reaction pathway of a primary cell causing filiform corrosion on the surface of the magnesium alloy by preparing a membrane layer of the electric insulating layer on the surface of a jig where mechanical processing needs to be carried out on the magnesium alloy, and fundamentally prevents filiform corrosion from being generated on the surface of the magnesium alloy.

Description

technical field [0001] The invention relates to an anti-corrosion technology, more specifically, relates to a technology for preventing magnesium alloys from being corroded during mechanical processing. Background technique [0002] In the process of mechanical processing using water-based emulsion, as the cutting fluid is used for a long time, the magnesium alloy die-casting products begin to suffer serious filiform corrosion on the surface in just a few minutes to ten minutes of processing. In order to solve this kind of problem, the machining section has to change the cutting fluid frequently. On the one hand, this treatment method causes a high cost of cutting fluid usage. On the other hand, the problem of corrosion of the magnesium alloy product has not been fundamentally improved. It is necessary to invent an anti-corrosion process, which can fundamentally solve the anti-corrosion process of magnesium alloy machining, and can save the cost of cutting fluid. Contents ...

Claims

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Application Information

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IPC IPC(8): C23F15/00
Inventor 马跃群陈其亮
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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